Labels:background | chip | crt screen | fountain | person | plant | poster | sculpture | water OCR: NATURAL artifacts Description: Composed of silica and oxygen Categorized into two basic types crystalline and massive Major component in all three types of rocks igneous sedimentary metamorphic Most abundant in Brazil, Madagascar and Arkansas (USA) Quart bowls and jewelry dating Quartz back to 3000 BC have been found in Egyptian tombs Today quartz of high quality is widely used by the electronic and optic industries Origin Brazil Because each specimen is unigue the photogr raph shown may differ slightly from the specimer on display. Please ask sales associate for assistance with your selection :: hasic erystalline eweln cualitv widel lectronic photograph showr vour selectior hack